The explosive growth of Netflix in the UK is coming to an end, according to data seen by The Sunday Telegraph.

The figures raise new questions over its business in the wake of Disney’s ­decision to take its films off the steaming service in the US.

Netflix does not publish UK subscriber numbers, but a confidential analysis by a well-placed industry player shows that its rapid expansion into British homes may be reaching its limits.

For most of last year the company was stuck on around 5.7 million subscribers, according to the figures, which are partly based on information for the Broadcasters’ Audience ­Research Board, a television industry body. The data also includes private consumer research.

Netflix received a seasonal boost over Christmas, adding another 400,000 subscribers as its acclaimed royal drama The Crown attracted new audiences. It has since stagnated again, however, and has remained on around 6.1 million users this year.

The figures represent a significant slowdown. After its UK launch in 2012, Netflix consistently added hundreds of thousands of new customers every quarter, according to the data.

Signs it is “topping out” will add to pressure on the company to find new sources of growth, with Amazon’s streaming service gaining ground.